• Ocean and Polar Research
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• 제30권1호
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• pp.11-19
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• 2008

Incubation routine and sex role of Streaked Shearwaters Calonectris leucomelas at Sasudo Island, in Jeju, South Korea, were studied during the incubation period, June to August in 2002. Incubation routine in Procellariiformes represents a sequence of alternating shifts taken in turn by female and male in a species-specific pattern. Hence, coordination of individual incubation rhythms between partners is crucial for successful breeding attempt. In Streaked Shearwaters, incubation routine represents a sequence of alternating shifts taken in turn by male and female. The first incubation shift was made by male after female had laid the egg. The mean incubation period was 50.8 days until hatching. Males had spent on average 26.5 days incubating and females 24.3 days accordingly. The mean duration of incubation shifts decreased progressively from 6th and 7th shift to hatching. Overall, males had spent more time incubating than females during the incubation period, but the mean duration of the incubation shift 5.6 days for males and 5.7 days for females did not differ between males and females. There were no effect of the body size of the breeding pair on incubation performance. For males the mean of body weight decreased during the incubation, whereas for females it remained approximately stable. In Streaked Shearwaters, the duration of incubation shift and subsequent foraging trip are related to loss of body weight during the period of fasting. In addition, coordination of individual incubation rhythms affects their incubation behaviour.

• Korean Chemical Engineering Research
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• 제62권1호
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• pp.44-52
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• 2024

복잡한 화학공정을 관리하기 위한 목적으로 도입된 공정안전관리(PSM: process safety management)제도는 그간 화학사고 예방에 기여해 왔으나, 최근에는 그 한계를 드러내고 있다. 최근 중대산업사고가 증가하고 있으며 특히 2020년 이후 비정상 작업에서 중대산업사고가 급증하였다. 효과적인 PSM 운영 방안이 필요한 시점이다. 본 연구에서는 비선형적이고 복잡한 상호작용을 모형화하여 인적오류 및 사고 발생 과정을 이해하고 예측하는데 유용한 기법인 기능공명분석기법(FRAM: Functional Resonance Analysis Method)을 활용하여 비정상 작업에서 발생한 사고 사례를 분석하고 나아가 일반적인 PSM 비정상 작업 수행 과정에 대한 분석을 수행함으로써, PSM 운영 과정에서 FRAM이 효과적으로 활용될 수 있음을 검토하였다.

• Clinical and Experimental Vaccine Research
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• 제12권4호
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• pp.313-318
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• 2023

Purpose: Globally, 25 million children were either unvaccinated or under-vaccinated in year 2021. Among them, India had the highest number of children unvaccinated. Studies have shown impact of coronavirus disease 2019 (COVID-19) pandemic on routine health-care services. Present study aimed to estimate the impact of COVID-19 on utilization of routine immunization services during years 2020 and 2021 in tertiary-care facility. Materials and Methods: Record based descriptive analytic study was conducted at pediatric tertiary-care hospital, Jaipur. Data of children vaccinated as per the National Immunization Schedule for the period January 2019 to December 2021 were retrieved from the immunization records. Doses administered were assessed as a proxy measure of vaccine coverage. The vaccination trends of 2020 and 2021 were compared assuming base year 2019. Unpaired t-test of significance and Pearson correlation was used for correlation analysis. Results: There was significant drop in the vaccine counts after emergence of COVID-19 pandemic. In year 2020 and 2021, mean monthly vaccine count was 2,190±715.1 and 2,305±393.2, respectively, in which maximum drop was in April 2020 (-79.12%) and May 2021 (-57.16%) when it was compared with matched month of base year. There was negative correlation between percent change in vaccine count and COVID-19 cases in 2020 (r=-0.057, p=0.861) and 2021 (r=-0.827, p=0.001) as compared to year 2019. Conclusion: Study concludes that there was a significant gap in utilization of routine immunization services during the COVID-19 pandemic. This necessitates planning and management of routine immunization services in-case of future pandemics to avoid resurgence of vaccine-preventable diseases in the Rajasthan.

• Investigative and Clinical Urology
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• 제59권6호
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• pp.410-415
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• 2018

Purpose: Despite meticulous techniques, surgical complications continue to be problematic in kidney transplant recipients. Role of routine stenting to reduce complications is controversial. In this study, we compare incidence of early urological complications, lymphoceles, urinary tract infections (UTI) and graft function; with or without double-J stenting. Materials and Methods: All patients who underwent live related donor renal transplantation from February 2014 to February 2016 were included. Transplants prior to February 2015 were without routine stenting; subsequent transplants were with routine stenting. Patients with neurogenic bladder, previously operated bladder and delayed or low urinary output were excluded. Followup was for at least three months. Descriptive statistics was performed for all parameters. Chi square test and Fisher's Exact test were used for qualitative variables. For quantitative variables, Mann-Whitney test was used to test median difference and independent samples t-test for mean difference. The p-value ${\leq}0.05$ was considered significant. Results: We analysed 74 patients (34 stented and 40 non-stented). There was no difference in the incidence of urinary leak, anastomotic obstruction, lymphoceles or UTI (p>0.4 for all comparisons). However, mean estimated glomerular filtration rate at sixth day, 14th day, one month and two months were 76.1 vs. 61.5 (p=0.025), 72.1 vs. 56.6 (p=0.005), 79.4 vs. 63.1 (p=0.002) and 82.0 vs. 63.3 (p=0.001) in the stented versus non-stented groups. Conclusions: Placement of ureteral stent in renal transplant does not significantly affect the incidence of early urinary complications or UTI. However, graft function is significantly better in stented recipients, at least in the short term.

• Korean Journal of Radiology
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• 제23권1호
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• pp.1-5
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• 2022

• 한국항행학회논문지
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• 제16권3호
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• pp.488-494
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• 2012

본 논문은 악성코드가 사용하는 자기방어기법을 방식에 따라 분류하고, 악의적인 코드를 보호하는 방법의 일종인 패킹에 대해 소개하였으며, 패킹을 이용하는 악성코드를 보다 빠르게 분석할 수 있는 방안을 제시하였다. 패킹기법은 악의적인 코드를 은닉하고 실행 시에 복원하는 기술로서 패킹된 악성코드를 분석하기 위해서는 복원 후의 진입점을 찾는 것이 필요하다. 기존에는 진입점 수집을 위하여 악성코드의 패킹 관련 코드를 자세히 분석하여야만 했다. 그러나 본 논문에서는 이를 대신하여 악성코드를 생성한 표준 라이브러리 코드 일부를 탐색하는 방법을 제시하였다. 제시한 방안을 실제로 구현하여 보다 신속히 분석할 수 있음을 증명하였다.

• 대한치과의사협회지
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• 제51권1호
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• pp.39-45
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• 2013

Radiographic examinations are used to discover and define the type and extent of disease in many clinical situations. Currently, it is common for dental patients to receive dental radiographic examinations on a routine schedule with little variation in spite of different patient signs and symptoms. Such routine scheduling of radiographic examinations may result in unnecessary patient exposure. There is also the possibility of under-utilization of radiography; this can result in inadequate or excessively delayed diagnosis. Patient selection criteria are descriptions of clinical conditions derived from patient signs, symptoms and history that identify patients who are likely to benefit from a particular radiographic examination. It makes possible making individual decisions based on history, clinical examination and risk factors. The radiographic selection criteria of dentistry have been revised in accordance with recent guidelines and peer-reviewed research in USA and Europe, but the studies of these subjects are not sufficient in our nation. In this review article, the relating factors and update necessity of radiographic selection criteria are discussed.

• 대한두개안면성형외과학회지
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• 제9권1호
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• pp.8-11
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• 2008

Purpose: The majority of nasal bone fractures have been managed by routine procedure of closed reduction, intranasal packing or intranasal Kirschner wire (K-wire) splinting. But it leaves rooms for many complaints from patients such as pain, rhinorrhea and nasal obstructioon. Another option is, of course, no packing at all. The study was initiated to assess the necessity to pack or splint the nasal bone after routine closed reduction. Methods: We analysed the medical records of 35 patients with nasal bone fracture who were operated by closed reduction in the last 2 years. We evaluated the postoperative CT scan scores and external deviation criterias 1 month after the operation. Results: The postoperative deviation criteria and postoperative CT scan score were favorable and there were no serious complications using this technique. Conclusion: The present study demonstrates that the use of packing or splinting need not be routine in the majority of cases. The risks and discomforts associated with these procedures can often be avoided.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2007년도 추계학술대회 논문집
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• pp.296-300
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• 2007

Roller rigs have been built widely to study and evaluate the dynamic behaviors of railway vehicles, and they have particularly been applied to the development and routine maintenance of high-speed trains. However, there is no roller rig for routine maintenances of high speed train in Korea, although high speed train is running on the lines. Therefore, it is very important issue to check and evaluate the dynamic responses of high speed train after several years of operation. This paper presents a study on the conceptual design and dynamic model to develop the roller rig for the routine maintenances of high speed trains. The roller rig has two independent electronic motor and maximum speed of 350km/h, which can simulate running on straight and curved track. CATIA V5 was used to design the 3D geometrical models and ADAMS was used to verify and analyze the dynamic behaviors of roller rig.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2017년도 추계학술대회
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• pp.205-207
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• 2017

본 논문은 수면 의식을 관리하기 위하여 일관성과 반복에 초점을 맞춘 모바일 어플리케이션과 아두이노를 활용한 '라포라포'를 소개한다. 수면 의식은 아기의 숙면과 통잠을 위해 필요한 수면 교육 중 가장 핵심이 되는 수면 교육이다. 수면 의식 각 단계에서는 아기에게 수면 연상 작용을 일으키는 동시에 수면 의식을 원활하게 도와주기 위해 센서가 부착된 아두이노 인형을 사용한다. 아두이노에 부착된 센서는 모바일 어플리케이션과 블루투스를 이용해 통신하며 데이터를 받는다.